TURNS TO CHAOS. THE F.B.I. IS OPENING UP ITS OWN INVESTIGATION OF THE FATAL POLICE SHOOTING OF MICHAEL BROWN. TENSION REMAIN HIGH WHERE THE TEENAGER WAS SHOT AFTER A SCUFFLE WITH POLICE. PROTESTERS MARCHED TO THE POLICE HEADQUARTERS DEMANDING JUSTICE. SOME HELD THEIR HANDS UP YELLING DON'T SHOOT. THE POLICE CHIEF SAYS BRINGING IN THE F.B.I. IS THE FIRST STEP TO BRING THE COMMUNITY BACK TOGETHER. THIS WAS A TERRIBLE TRAGEDY. NOBODY WANTED THIS TO HAPPEN. WHAT WE WANT TO DO IS WE WANT TO HEAL. WE WANT TO BUILD TRUST WITH THE COMMUNITY AND PART OF THAT IS TO HAVE A TRANSPARENT, OPEN INVESTIGATION. THE POLICE OFFICER WAS PHYSICALLY ASSAULTED BY THE TEEN AND HIS FRIEND. THE TRUST THAT THE POLICE CHIEF WAS TALKING ABOUT IS GONE AND WILL TAKE A LONG TIME TO GET BACK. TENSIONS REMAIN HIGH AND FRUSTRATION IS BUILDING, INCLUDING AT ONE STORE HERE. THIS STORE WAS HIT HARD YESTERDAY. YOU CAN SEE WHERE THEY HAVE BOARDED UP THE DOOR HERE. THIS MAN IS ONE OF THE BUSIER MEN IN FERGUSON. THIS IS HIS 18th CALL TO START REPAIRING THE BUSINESSES. HE IS BUILDING A CAGE THAT HE IS GOING TO BUILD IN FRONT OF THE BUSINESS. THIS IS SAM'S MEAT MARKET, NOT FAR FROM THE QUICK TRIP WE SAW LAST NIGHT. LET ME SHOW YOU THE DAMAGE THAT WE'VE SEEN FIRSTHAND HERE. THE SHELVES WERE FULL LAST NIGHT WITH LITTLE BOLLS OF LIQUOR AND YOU CAN SEE HOW EMPTY IT IS. ALL THE SHELVES ARE COMPLETELY CLEANED, A MASSIVE SAFE WAS LIFTED UP AND CARRIED OUT. CIGARETTES WERE FULL LAST NIGHT AND NOW YOU CAN SEE HOW EMPTY THEY ARE. THIS IS JUST ONE STORE HIT. THE SECURITY SYSTEM AND TRASH CANS THAT THEY USED TO FILL UP WITH BOOZE TO WHEEL WAY. EMPLOYEES ARE AT A LOSS FOR ALL THEY HAVE LOST. A GOOD FAMILY. A GOOD KID. A GOOD COMMUNITY. WE HAD NOTHING TO DO WITH THIS. WHY COME IN AND DESTROY SOMETHING THAT IS GOOD TO THE COMMUNITY ALL THESE YEARS? THAT IS WHY WE'RE SPEECHLESS. NOW TO GIVE YOU SOME PERSPECTIVE, WE'RE OUTSIDE THE BUSINESS. THIS IS THE MAIN STREET HERE AND SOME OF THE DAMAGE IS LEFT BEHIND. MICHAEL LIVED IN SOME APARTMENTS BACK HERE, ACTUALLY. ALL AFTERNOON AND EVENING PEOPLE HAVE BEEN GATHERING HERE AS THE AFTERNOON HAS GONE ON. WE SEE MORE AND MORE PEOPLE GATHER HERE. AS WE SWING TO THE LEFT, THAT IS THE QUICK TRIP THAT HAS BECOME THE STAGING GROUND FOR PROTESTERS. MANY ARE HOLDING UP SIGNS. WE HAVE SEEN SOME PEOPLE HOLDING POLICE TAPE UP. ONE PERSON TIED IT AROUND HIS BELT AND ANOTHER FASHIONED A HEADBAND ON IT. THERE IS GENERAL WORRY TONIGHT ABOUT WHAT NIGHT FALL MAY BRING.